middlander

I have a set of sata cables at home but I'm not in the uk right now cheers for your help

I think it did I've tried removing and swapping the ram I've disconnected the hard drive and tried it the same thing happens each time

I have a hp laptop running on windows 7, it worked fine 3 hours ago but now will not boot properly. It turns on after 2 seconds turns off and then about 4 seconds later turns on again by itself. The fans run and the lights on caplocks and wifi come on. The screen does not come on and the there are no beeps to indicate a fault. The fan continues to run until I turn it off but nothing else happens. I have tried removing the hard drive, ran disconnecting the battery and running off of mains powe and using a hdmi cable and external monitor to make sure it wasn't just a display problem. I am now at a loss and need help